Thank you all for commenting. I thought I would have a email notification of replies but didn't and it took me a while to find my own post...
She took the Ativan last night and it always knocks her out. Takes a while but after a hour or two she sleeps. She doesn't really want to take them but it seems to be the only thing that calms her down.
I looked down her throat a minute ago and it is definitely irritated. Lots of redness - a pattern that looks like spidery thin veins.
She has a appointment with an MD at 2 pm today. I'll mention the Hiatal Hernia and see what they say.